Aluminum alloys are utilized a lot more frequently in commercial applications than real or pure lightweight aluminum , because within an unalloyed state the material properties are unsuitable for machining: The machining behavior of real aluminum is tough and lubricious. In addition, the materials at 660 ° C has a suprisingly low melting point, not forgetting the high thermal conductivity of the steel and its own also high thermal growth coefficient. This helps it be tough to weld .
It might be that a few of these characteristics are required in specific areas, however the properties and requirements that are in common demand can not be met or met with genuine aluminum. The lightweight aluminum is therefore blended with certain foreign metals, which positively modify the physical properties of the light metal depending on the application form. The light weight aluminum is consequently alloyed – it produced in this manner different aluminum alloys .
The classification of aluminum alloys
An alloy is certainly by definition a metallic material consisting of at least two elements . Normal alloy constituents of an aluminium alloy admixed with the base material Al99.5 are, for example, beryllium, magnesium, manganese, copper, nickel, silicon, zinc and tin.
Primarily designed by the alloy strength ideals of the material are elevated, but also various other properties could be influenced based on the alloy component, so that it, for instance, l judges welded could be made. When it comes to increasing the power, this can be done by work hardening after the alloying elements have been added.
The curing can also be achieved by heat treatment. Depending on Aluminium Profile Supplier , the material can be divided into normally hard or curable lightweight aluminum alloys , and in addition in aluminium wrought alloys and aluminium casting alloys. The previous are prepared by extrusion or rolling, while aluminium casting alloys are produced by casting, as the name suggests.
From this it could be deduced what can arise from the particular aluminum alloys. While aluminum profiles, aluminum tubes or aluminum sheets can be produced from wrought alloys using the rolling or extrusion procedure, casting alloys are accustomed to manufacture parts, for example electric motor housings or the like.